Hi, On Wed, Jun 30, 2010 at 04:04:31PM +0200, Alexander Wirt wrote: > Unfortunatly that is a known problem with rrd 1.4.x, cairo is much > slower than in 1.2.x. The only way to prevent this is to stay on 1.2
unfortunately, it appears that graph generation isn't the only thing that slowed down from 1.3 to 1.4. With RRDtool 1.4, an update causes *a lot more* data to be read from disk than RRDtool 1.3 does. This results in a slowdown from ~40 writes per second (RRDtool 1.3) to ~15 writes per second (RRDtool 1.4) on the same machine. I do not yet know what the cause of this is, but I'll try to track that down. Regards, —octo -- Florian octo Forster Hacker in training GnuPG: 0x91523C3D http://verplant.org/
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